A vacation from a friend, activity, or location (e.g. bar, restaurant) due to committing a shame-inducing transgression (e.g. 86'd from a bar, making out with a friend's spouse). Typically lasts until one apologizes/settles the lawsuit to/with the aggrieved party.

Stan went on a shamecation from hanging out with Kyle after getting inappropriately drunk at his wife's birthday party and being thrown out of the restaurant for arguing with the Asian manager.